Electronics Worksheet: Circuit Symbols

Electronics lesson 7: Circuit symbols · Set 370 · 40 questions

Remember (Shape tells the part): Cell: long and short line (long = +). Battery: two or more cells. Wire: straight line. Junction: a dot. Bulb: circle with a cross. Switch: line lifted at a gap. Resistor: rectangle. Capacitor: two equal parallel lines. Diode: triangle against a bar; LED: the same with two arrows out. Circle with M = motor, A = ammeter, V = voltmeter.

1. 1.✏️ In a circuit diagram, wires are usually drawn as … (a) wavy lines (b) straight lines (c) dotted circles (d) little stars
2. 2.Which drawing is the symbol for a switch? (a) many long-short pairs (b) a circle with M inside (c) a line lifted at a gap (d) a straight line
3. 3.Which drawing is the symbol for a battery? (a) triangle against a bar (b) one tall, one short bar (c) many long-short pairs (d) a straight line
4. 4.✏️ In a circuit diagram, which part is drawn as a long and a short line? (a) ammeter (b) resistor (c) cell (d) capacitor
5. 5.✏️ Why do engineers draw circuits with symbols? (a) to make it colourful (b) quick and clear for all (c) symbols are heavier (d) to hide the circuit
6. 6.True or false: two equal parallel lines is the symbol for a voltmeter. (a) False (b) True
7. 7.True or false: two or more cell symbols is the symbol for a battery. (a) False (b) True
8. 8.True or false: a line lifted at a gap is the symbol for an ammeter. (a) True (b) False
9. 9.Which drawing is the symbol for a capacitor? (a) a circle with M inside (b) a dot where wires meet (c) two equal parallel lines (d) triangle, bar and arrows
10. 10.True or false: triangle against a bar is the symbol for a diode. (a) True (b) False
11. 11.✏️ In a cell symbol, which line is the + terminal? (a) neither line (b) the shorter line (c) the longer line (d) both lines
12. 12.True or false: triangle against a bar is the symbol for a capacitor. (a) True (b) False
13. 13.True or false: a small empty box is the symbol for an LED. (a) True (b) False
14. 14.✏️ In a circuit diagram, which part is drawn as many long-short pairs? (a) LED (b) capacitor (c) battery (d) resistor
15. 15.✏️ In a circuit diagram, which part is drawn as a circle with M inside? (a) voltmeter (b) ammeter (c) resistor (d) motor
16. 16.Which drawing is the symbol for a battery? (a) two or more cell symbols (b) a circle with V inside (c) a long and a short line (d) a circle with an X in it
17. 17.True or false: one tall, one short bar is the symbol for a cell. (a) True (b) False
18. 18.Which drawing is the symbol for a bulb? (a) a circle with an X in it (b) a dot where wires meet (c) triangle against a bar (d) a small empty box
19. 19.True or false: a line lifted at a gap is the symbol for a switch. (a) False (b) True
20. 20.✏️ In a circuit diagram, which part is drawn as a small empty box? (a) resistor (b) motor (c) battery (d) switch
21. 21.✏️ In a circuit diagram, which part is drawn as two equal parallel lines? (a) capacitor (b) wire (c) resistor (d) voltmeter
22. 22.Which drawing is the symbol for a voltmeter? (a) a circle with V inside (b) a line lifted at a gap (c) a circle with a cross (d) many long-short pairs
23. 23.True or false: a long and a short line is the symbol for a battery. (a) True (b) False
24. 24.Which drawing is the symbol for an ammeter? (a) a circle with M inside (b) a circle with a cross (c) two equal parallel lines (d) a circle with A inside
25. 25.True or false: triangle, bar and arrows is the symbol for a diode. (a) False (b) True
26. 26.True or false: a circle with a cross is the symbol for a cell. (a) True (b) False
27. 27.✏️ In a circuit diagram, which part is drawn as a circle with V inside? (a) wire (b) voltmeter (c) diode (d) LED
28. 28.True or false: a long and a short line is the symbol for a cell. (a) True (b) False
29. 29.Which drawing is the symbol for a bulb? (a) triangle, bar and arrows (b) a long and a short line (c) a circle with a cross (d) triangle against a bar
30. 30.Which drawing is the symbol for a cell? (a) a long and a short line (b) a line lifted at a gap (c) triangle against a bar (d) two equal parallel lines
31. 31.✏️ In a circuit diagram, which part is drawn as a circle with A inside? (a) junction (b) capacitor (c) ammeter (d) cell
32. 32.✏️ In a circuit diagram, which part is drawn as a plain rectangle? (a) resistor (b) motor (c) junction (d) wire
33. 33.✏️ In a circuit diagram, which part is drawn as a circle with an X in it? (a) bulb (b) switch (c) cell (d) motor
34. 34.True or false: a circle with a cross is the symbol for a junction. (a) True (b) False
35. 35.True or false: a straight line is the symbol for a diode. (a) True (b) False
36. 36.✏️ In a circuit diagram, which part is drawn as one tall, one short bar? (a) battery (b) diode (c) cell (d) junction
37. 37.Which drawing is the symbol for a wire? (a) a plain rectangle (b) a circle with A inside (c) a straight line (d) a line lifted at a gap
38. 38.True or false: a circle with V inside is the symbol for a cell. (a) True (b) False
39. 39.Which drawing is the symbol for a cell? (a) a circle with a cross (b) two equal parallel lines (c) one tall, one short bar (d) a circle with M inside
40. 40.True or false: a circle with V inside is the symbol for a voltmeter. (a) True (b) False

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